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EP 4 739 808 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24838976.9 (22) Date of filing: 05.07.2024

(51) International Patent Classification (IPC):  C22B 7/00(2006.01) H01M 10/54(2006.01) C01G 23/047(2006.01) C22B 34/10(2006.01) C01G 23/00(2006.01) (52) Cooperative Patent Classification (CPC): Y02W 30/84; C01G 23/047; H01M 10/54; C22B 7/007; C22B 7/006; C01P 2006/80; C22B 1/005; C22B 7/005; C22B 1/02; C22B 34/125; C22B 34/1259; H01M 4/485 (86) International application number: PCT/IB2024/056570 (87) International publication number: WO 2025/012769 (16.01.2025 Gazette 2025/03)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 07.07.2023 IN 202311045807 (71) Applicant: Attero Recycling Pvt. Ltd. Roorkee, Uttarakhand 247661 (IN)	(72) Inventors: BARIK, Smruti Prakash Haridwar Uttarakhand - 247661, India Roorkee 247661 (IN) PRABAHARAN, G Haridwar Uttarakhand - 247661, India Roorkee 247661 (IN) KUMAR, Bhuvnesh Haridwar Uttarakhand - 247661, India Roorkee 247661 (IN) GUPTA, Nitin Haridwar Uttarakhand - 247661, India Roorkee 247661 (IN) (74) Representative: Ström & Gulliksson AB  P.O. Box 793 220 07 Lund 220 07 Lund (SE)